[treetopsandroofs]

So will “they” now become a grammatically correct singular pronoun for non-specific gender?

As in,

The intern needs a new computer because they reported problems with its operating system.

[the OlLine Rebel]

That drives me crazy, and is RAMPANT not just with street morons but journalists and marketing ads.

[OneWingedShark]

So will “they” now become a grammatically correct singular pronoun for non-specific gender?
As in,
The intern needs a new computer because they reported problems with its operating system.

No, no no. The proper gender-neutral is it, to fix your example:
    The intern needs a new computer because it reported problems with the computer's operating system.